DTC 2135 for Chevrolet Impala 2008 with 3.9 Engine

DIGGER 7613

MEMBER
2008 CHEVROLET IMPALA
49,322 MILES

I replaced the pedal position sensor(gas pedal assembly)still the same problem. Had a problem 15 months ago took it to dealer he changed the TPS and did something with computer and it worked until now not sure if it was even related.I gt a stabilitrac warning and reduced engine power and check engine light.

Friday, November 4th, 2011 AT 8:51 PM

4 Replies

HMAC300

MECHANIC
48,601 POSTS

The other problems may be related to your code. If you replaced the throttle sensor and didn't erase the code that may be why. You need a scanner to erase codes.

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Saturday, November 5th, 2011 AT 6:41 PM

DIGGER 7613

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3 POSTS

I didn't make it very clear. I did erase it and all problems came back.I erased it again and the next day it came back again. Still has the DTC2135, check engine light, stabilitrac warning and reduced engine power. Thanks for answering.

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Saturday, November 5th, 2011 AT 8:07 PM

HMAC300

MECHANIC
48,601 POSTS

There are 2 tps switchs in this system. And it means that they are out of whack with each otherand thw will give yo ureduced engine power. This will hav eto be checked with a scan tool that can check voltage at the same time. If yo have the one most commonly sold at auto parts stores this wont do it. This can also be an ecm problem this is best left to ta pro so he can do what is needed to check this. You could have a hort to ground or something causing high resitance in the circuit.

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Saturday, November 5th, 2011 AT 9:09 PM

DIGGER 7613